Walking support base assembly



FIG. 1 is a perspective view of a walking support base assembly showing my new design;

FIG. 2: is a right side view thereof;

FIG. 3: is a left side thereof;

FIG. 4: is a top view thereof;

FIG. 5: is a bottom view thereof;

FIG. 6: is a front view thereof; and,

FIG. 7: is a back view thereof. 

The ornamental design for the walking support base assembly, as shown and described. 